package com.example.tests;

import static com.example.fw.WebDriverHelperBase.getPrefix;
import static com.example.fw.RandomizeHelper.generateRandomSuffix;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import com.thoughtworks.xstream.XStream;

public class GroupDataGenerator
{
	/**
	 * @param args
	 * @throws IOException
	 */
	public static void main(String[] args) throws IOException
	{
		if (args.length < 3)
		{
			System.out.println("Please specift parameters: <amount of test data> <file> <format>");
		}
		int amount = Integer.parseInt(args[0]);
		File file = new File(args[1]);
		String format = args[2];

		if (file.exists())
		{
			System.out.println("File exist, please remove it manually: " + file);
			return;
		}

		List<GroupData> groups = generateRandomGroups(amount);
		if ("csv".equals(format))
		{
			saveGroupsToCsvFile(groups, file);
		}
		else if ("xml".equals(format))
		{
			saveGroupsToXmlFile(groups, file);
		}
		else
		{
			System.out.println("Unknown format" + format);
		}
	}

	private static void saveGroupsToXmlFile(List<GroupData> groups, File file) throws IOException
	{
		XStream xstream = new XStream();
		xstream.alias("group", GroupData.class);
		String xml = xstream.toXML(groups);

		FileWriter writer = new FileWriter(file);
		writer.write(xml);
		writer.close();
	}

	public static List<GroupData> loadGroupsFromXmlFile(File file) throws IOException
	{
		XStream xstream = new XStream();
		xstream.alias("group", GroupData.class);
		return (List<GroupData>) xstream.fromXML(file);
	}

	private static void saveGroupsToCsvFile(List<GroupData> groups, File file) throws IOException
	{
		FileWriter writer = new FileWriter(file);
		for (GroupData group : groups)
		{
			writer.write(group.getName() + "," + group.getHeader() + "," + group.getFooter() + ",!" + "\n");
		}
		writer.close();
	}

	public static List<GroupData> loadGroupsFromCsvFile(File file) throws IOException
	{
		List<GroupData> list = new ArrayList<GroupData>();
		FileReader reader = new FileReader(file);
		BufferedReader bufferedReader = new BufferedReader(reader);
		String line = bufferedReader.readLine();
		while (line != null)
		{
			String[] part = line.split(",");
			GroupData group = new GroupData()
					.withName(part[0])
					.withHeader(part[1])
					.withFooter(part[2]);
			list.add(group);
			line = bufferedReader.readLine();
		}
		bufferedReader.close();
		return list;
	}

	public static List<GroupData> generateRandomGroups(int amount)
	{
		String prefix = "";
		prefix = getPrefix(prefix);

		List<GroupData> list = new ArrayList<GroupData>();
		for (int i = 0; i < amount; i++)
		{
			GroupData group = new GroupData()
					.withName(generateRandomSuffix(prefix + "name "))
					.withHeader(generateRandomSuffix(prefix + "header "))
					.withFooter(generateRandomSuffix(prefix + "footer "));

			list.add(group);
		}

		return list;
	}

}
